[USN-5402-2] OpenSSL vulnerabilities


========================================================================== Ubuntu Security Notice USN-5402-2 May 26, 2022
openssl vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 16.04 ESM
Summary:
Several security issues were fixed in OpenSSL.
Software Description: – openssl: Secure Socket Layer (SSL) cryptographic library and tools
Details:
USN-5402-1 fixed several vulnerabilities in OpenSSL. This update provides the corresponding update for Ubuntu 16.04 ESM.
Original advisory details:
Elison Niven discovered that OpenSSL incorrectly handled the c_rehash script. A local attacker could possibly use this issue to execute arbitrary commands when c_rehash is run. (CVE-2022-1292)
Aliaksei Levin discovered that OpenSSL incorrectly handled resources when decoding certificates and keys. A remote attacker could possibly use this issue to cause OpenSSL to consume resources, leading to a denial of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-1473)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 ESM: libssl1.0.0 1.0.2g-1ubuntu4.20+esm3
After a standard system update you need to reboot your computer to make all the necessary changes.
References: ubuntu.com/security/notices/USN-5402-2 ubuntu.com/security/notices/USN-5402-1 CVE-2022-1292, CVE-2022-1473